At their beachhouse, Anna and Ben have 37 books. Anna has read 21 of them and Ben has read 26 of them. 2 of the books have not been read at all. Find the number of books which have been read by:
Ben but not Anna

1/3 + 1/5 = 8/15.

step-by-step explanation:

hope it

17.08

correct me if i am wrong.

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°.