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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

Given: ac and db are diameters. m∠3=

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base