PLEASE HEL

1. Which of the following figures can also be classified as a parallelogram?

Select all that apply.

square

trapezoid

rhombus

right triangle

rectangle

pentagon

2. Classify the triangle by its sides.
A triangle has three side lengths of 10 centimeters.

right triangle
scalene triangle
equilateral triangle
acute triangle

3. The ratio of the angle measures of a triangle are 1:2:2. What type of triangle is this?

acute triangle
right triangle
obtuse triangle
equiangular triangle