Both of the other angles are 40° because a triangle has a total angle of 180° and an isosceles triangle means that at least two of the sides have to be the same length (two angles must be the same)
180 - 100= 80
80 ÷ 2 = 40
Answer:
Step-by-step explanation:(7m+7)(7m+2) multiply, 7m×7m+7m×2+7×7m+7×2. 49m2+14m+49m+14. = 49m2+63m+14
Answer:
57 dollars
Step-by-step explanation:
19 divided by 4 is 4.75
4.75x12=57
Answer: 90n + c
Step-by-step explanation: