Based on the diagram below, which statement could be used to prove that the measure of angle 1 equals the measure of angle 2? A. the sum of the angles in a triangle is 180°
B. ertical angles are congruent.
C. Supplementary angles sum to 180°
D. complementary angles sum to 90°

Vikram is studying the square pyramid below. on st to find the surface area of the pyramid, in square inches, vikram wrote (33.2) (34 ikram wrote (33.2)(34.2)+43(34.2)(284) what error did vikram make? o he used the same expression for the area of all four lateral faces. he used the wrong expression to represent the area of the base of the pyramid. o he used the wrong value as the height when he found the area of the lateral faces. he used an expression for surface area that only finds the total area of three faces.