We have the formula \(\displaystyle{A}={\frac{{{1}}}{{{2}}}}{b}{h}\), where A is the area, b is the base, and h is the height.

Navreaiw

Answered 2021-12-21
Author has **3304** answers

asked 2021-11-16

Without using the fact that the area of a triangle is \(\displaystyle{\frac{{{1}}}{{{2}}}}{b}{h}\) but instead only using the area of a rectangle \(\displaystyle{l}\times{w}\), explain why the area of the following triangles is equal to \(\displaystyle{\frac{{{1}}}{{{2}}}}{b}{h}\). Be sure that your expression mathes your moving and additivity story.

a)

asked 2021-08-22

A classmate drew an acute triangle with sides 9 in. and 12 in. What is the greatest possible whole number that can be the length of the longest side of the triangle in inches? Provide evidence.

asked 2021-08-15

Veronica made a triangle by taking an 8 1/2 × 11 sheet of paper and putting a dot at the top. She then drew lines from the bottom corners to the dot and cut along the lines (see diagram).

[Triangles]

What is the area of the triangle that Veronica cut out?

[Triangles]

What is the area of the triangle that Veronica cut out?

asked 2021-11-23

Find the height of the triangle g to the nearest tenth.

asked 2021-09-04

Given a right triangle with \(\displaystyle\angle{a}={65}^{\circ}\). The cathetus opposite to \(\displaystyle\angle\)a is \(\displaystyle\overline{{A}}={250}\) m. Find the second cathetus \(\displaystyle{\left(\overline{{B}}\right)}\).

asked 2021-08-31

Given a right triangle with \(\displaystyle\angle{a}={23.4}^{\circ}\). The cathetus opposite to \(\displaystyle\angle{a}\) is \(\displaystyle\overline{{A}}={5.75}\) m. Find the second cathetus \(\displaystyle{\left(\overline{{B}}\right)}\).

asked 2021-09-10

Given a right triangle. One cathetus is 100cm long. Find the length of the other cathetus, if the angle opposite to it is \(\displaystyle{71.6}^{\circ}\). Round your answer to an integer.