Area and Perimeter of Triangles Answers

Perimeter = 36 cmHeron’s formula: Area =

Heron’s formula: Area =

Jace ordered a banner in the shape of a parallelogram from a print shop.Heron’s formula: Area =

Lian is making a banner for the school gym. She cut three pieces of fabric into congruent isosceles triangles, as shown.Trigonometric area formula: Area =

Trigonometric area formula: Area =

Lila made a triangular flag to cheer on her favorite sports team. The perimeter of the flag is 20 inches.Heron’s formula: Area =

A spinner for a board game consists of a cardboard circle with two plastic arrows anchored to its center. The arrows are congruent isosceles triangles connected at their bases, as shown.Heron’s formula: Area =

Trigonometric area formula: Area =

Trigonometric area formula: Area =

The area of parallelogram WXYZ is approximately 45 square units.Trigonometric area formula: Area =