How to find the area of an acute / obtuse triangle

Practice Questions

ISEE Upper Level Mathematics Achievement › How to find the area of an acute / obtuse triangle

Questions

5

1

Right triangle

Figure NOT drawn to scale.

$\bigtriangleup ABC$ is a right triangle with altitude $\overline{BX}$ . What percent of $\bigtriangleup ABC$ has been shaded gray?

Choose the closest answer.

2

Two sides of a scalene triangle measure 4 centimeters and 7 centimeters, and their corresponding angle measures 30 degrees. Find the area of the triangle.

3

A scalene triangle has a base length and a corresponding altitude of . Give the area of the triangle in terms of .

4

What is the area of a triangle on the coordinate plane with its vertices on the points ?

5

What is the area of a triangle on the coordinate plane with its vertices on the points ?

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