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2 cards from this section. Quick, good the night before a test.
What is the area of a triangle with sides 10 cm, 10 cm, and 10 cm?
Calculate the semi-perimeter first.
Find the semi-perimeter of a triangle with sides 6 cm, 8 cm, and 10 cm.
Remember to divide by 2 after summing the sides.
What is Heron's formula used for?
Focus on the context where this formula is applied.
True or False: The semi-perimeter is the total perimeter of the triangle.
Remember to consider how perimeter relates to semi-perimeter.
A triangle has sides 15 cm, 20 cm, and 25 cm. Calculate the area and determine if it is a right triangle.
Remember to check for right triangles after finding the area!
A triangular park has a perimeter of 144 m and sides 50 m and 62 m. Find the area of the park.
Focus on calculating the semi-perimeter correctly.
4 more questions in this section. Enroll free to practise them all.
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