Wall with an area of (3x2 4x 1) square units has a rectangular window that has a width of (x 2) units and a length of (x 1) units. The wall also has a built-in shelving unit that occupies an area of (x2 5x 6) square units of wall space. If the wall is to be covered with wallpaper, how much wallpaper will be required

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.

1 liter of pineapple juice was made i think.

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