If a is directly proportional to b, And a=25 when b=35, Find b when a=40 (i really need the method)

b = 56

Step-by-step explanation:

A way to solve this is cross multiplication!

25/35 = 40/b

40 · 35 = 1400

1400/25 = 56

I hope I was able to help. Have a good new year!

step-by-step explanation:

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°.