IT

<RelativeLayout

    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@mipmap/ic_launcher_round">

    <TextView
        android:id="@+id/standard"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_centerInParent="true"
        android:text="기준 뷰"
        android:textColor="#FF0000"
        android:textSize="30dp"
        android:gravity="center_vertical"
        android:textAlignment="center"
        android:background="@color/colorPrimaryDark"/>

    <TextView
        android:layout_toRightOf="@+id/standard"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_centerInParent="false"
        android:text="1번 뷰"
        android:textColor="#FF0000"
        android:textSize="30dp"
        android:gravity="center_vertical"
        android:textAlignment="center"
        android:background="@color/colorAccent"/>

    <TextView
        android:layout_below="@+id/standard"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_centerInParent="true"
        android:text="2번 뷰"
        android:textColor="#FF0000"
        android:textSize="30dp"
        android:gravity="center_vertical"
        android:textAlignment="center"
        android:background="@color/colorPrimary"/>

</RelaytiveLayout>

<LinearLayout
    android:layout_width="match_parent" 
    android:layout_height="500dp" 
    android:orientation="horizontal" 
    app:layout_constraintHorizontal_weight="5" 
    android:background="@mipmap/ic_launcher_round" 
    tools:ignore="MissingConstraints"> 

    <TextView
        android:layout_width="100dp" 
        android:layout_height="100dp" 
        android:layout_weight="1" 
        android:background="@color/colorPrimaryDark"/> 
    <TextView
        android:layout_width="100dp" 
        android:layout_height="100dp" 
        android:layout_weight="1" 
        android:background="@color/colorAccent"/> 

    <TextView

        android:layout_width="100dp" 
        android:layout_height="100dp" 
        android:layout_weight="1" 
        android:background="@color/colorPrimary"/> 
</LinearLayout>

<LinearLayout

    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    app:layout_constraintHorizontal_weight="5"
    android:background="@mipmap/ic_launcher_round"
    tools:ignore="MissingConstraints">

    <TextView

        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_weight="1"
        android:background="@color/colorPrimaryDark"/>

    <TextView

        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_weight="1"
        android:background="@color/colorAccent"/>

    <TextView    

        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_weight="2"
        android:background="@color/colorPrimary"/>

</LinearLayout