What is 77*3+5-17homework assignment due

The isosceles triangle has two sides of equal length, a, that sre longer than the length of the base ,b. the equation 2a+b=15.7 can be used to find the sides length. if one of the longer sides is 6.3 centimeters what is the length of the base

What is the measure of the smallest angle in the diagram? 15 29 32 45

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position