Lesson Worksheet: Area of a Triangle Mathematics • 6th Grade

In this worksheet, we will practice calculating the area of a triangle given its base length and height.

Q1:

Find the area of a triangle whose height is 23 cm and base length is 16 cm.

Q2:

What is the area of the triangle on the front of James’s math folder?

Q3:

The height of a right triangle is 47 cm. The base is 26 cm. What is its area?

Q4:

Find the height of a triangle whose base length is 13 cm and area is 299 cm2.

Q5:

Find the area of △𝐴𝐡𝐢. Round your answer to the nearest hundredth.

Q6:

Find the area of △𝐴𝐡𝐢.

Q7:

The area of △𝐴𝐡𝐢 is 12.35. Find 𝐢𝐷 to the nearest hundredth.

Q8:

Determine the height, π‘₯, of the figure, given that 𝐴 is the area of its colored part.

Q9:

A triangle has area 24 and base 12. What is its height?

Q10:

Work out the area of the triangle.

  • A20 square units
  • B10 square units
  • C12 square units
  • D24 square units
  • E30 square units

Q11:

Given that the base length of a triangle is 7.4 cm, and the corresponding height is 6.5 cm, find its area rounded to the nearest hundredth.

Q12:

𝐴𝐡𝐢 is a triangle where 𝐴𝐢=9cm and the length of the perpendicular drawn from 𝐡 to 𝐴𝐢 is 16 cm. Find the area of 𝐴𝐡𝐢.

Q13:

Find the base length of a triangle having an area of 42 cm2 and a height of 7 cm.

Q14:

Find the area of β–³π‘‹π‘Œπ‘.

Q15:

What do you multiply half the base of a triangle with to find its area?

  • Aits width
  • Bits height
  • Cits length

Q16:

A triangle has area 877 and a height 28. What is the corresponding base? Give your answer to the nearest hundredth.

Q17:

Given that a triangular cracker has a height of 1.9 centimeters and a base of 3.2 centimeters, determine its area.

Q18:

Work out the area of the triangle.

Q19:

Find the area of △𝐴𝐡𝐢 rounded to the nearest hundredth.

Q20:

The area of a triangle is 6.45 cm2, and its height is 3 cm. Find the length of the corresponding base.

Q21:

Find the area of △𝐴𝐡𝐹.

Q22:

Find the area of △𝐿𝑀𝑁.

Q23:

Find the area of △𝐴𝐡𝐢 to the nearest hundredth.

Q24:

Find the area of β–³π‘‹π‘Œπ‘.

Q25:

Using <, =, or >, complete the following: The area of a rectangle whose dimensions are 15 cm and 6 cm is the area of a triangle whose base length is 30 cm with a corresponding height of 6 cm.

  • A<
  • B=
  • C>

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