Which of the following platonic solids is also a pyramid? a. tetrahedron b. hexahedron c. octahedron d. icosahedron e. dodecahedron f. none of these

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.

Qrst is a parallelogram. determine the measure of ∠q pls

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm2. what is the area of the second triangle?