GIVEN: angle 1 and angle 2 form a linear pair; angle 2 is congruent to angle PROVE: angle 1 and angle 3 are supplementary.

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v = 1/3 a^2h

step-by-step explanation:

if the height is 57.7cm and the height of the slant edge is 18.2cm, then the volume is 1/3 a^2h.

answer: you need the equation in the question so i can answer it

step-by-step explanation:

60°

step-by-step explanation:

the measure angle of c in an isosceles triangle abc is 60° because in isosceles triangle,the measures of all the angles is 60°.