Problem 1 :
A rectangle has sides of length 7 cm and 3 cm. Find the length of its diagonals.
Problem 2 :
The longer side of the rectangle is double the length of the shorter side. If the length of a diagonal is 10 cm, find the dimension of the rectangle.
Problem 3 :
A rectangle with diagonals of length 30 cm has sides in the ratio 3 : 1. Find the
(a) Perimeter (b) Area of the rectangle.
Problem 4 :
A rhombus has sides of length 7 cm. One of the diagonals is 10 cm long. Find the length of the other diagonal.
Problem 5 :
A square has diagonals of length 8 cm. Find the length of the sides.
Problem 6 :
A rhombus has diagonal of length 4 cm and 6 cm. Find the perimeter.
Problem 7 :
An equilateral triangle has sides of 6 cm
(a) Find the length one of its altitude.
(b) Find the area of the triangle. Solution
Problem 8 :
An isosceles triangle has equal sides of length 8 cm and the base of length 6 cm.
(a) Find the altitude of the triangle
(b) Find the area of the triangle Solution
1) AC = 7.61 cm 2) 4√5 cm 3) a) 24√10 cm b) 270 cm2 4) 12√6 cm |
5) 4√2 6) 4√13 7) a) AD = 3√3 b) 9√3 8) a) AD = √55 b) 4√55 cm2 |
For each triangle find the missing length. Round your answer to the nearest tenth. Then find the area and the perimeter.
Problem 1 :
Problem 2 :
Problem 3 :
Find a third number so that the three numbers form a right triangle:
9 , 41
Problem 4 :
Ms. Green tells you that a right triangle has a hypotenuse of 13 and a leg of 5. She asks you to find the other leg of the triangle. What is your answer?
Problem 5 :
The sides of a triangle have lengths x, x + 5, and 25.
If the length of the longest side is 25, what value of x makes the triangle a right triangle?
Problem 6 :
A 22 foot ladder lean against a shed reaching a height of x feet. The base of the ladder is 10 feet from the shed.
1) x = 8.48 2) x = 13.92 3) x = 40 |
4) x = 12 5) x = 15 6) x = 19.6 feet |
The following figures are not drawn to scale. Which of the triangles are right angled?
Problem 1 :
Problem 2 :
Problem 3 :
Problem 4 :
Problem 5 :
Problem 6 :
1) Not a right triangle 2) A right triangle 3) not a right triangle. |
4) not a right triangle. 5) a right triangle 6) a right triangle. |
May 21, 24 08:51 PM
May 21, 24 08:51 AM
May 20, 24 10:45 PM