What is the main challenge in calculating the area of irregular land?

Calculating Areas of Triangles

Interactive Video
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Mathematics
•
9th - 10th Grade
•
Hard

Thomas White
FREE Resource
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11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It is a perfect circle
All sides are equal
Different lengths and widths
It is a perfect square
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is a diagonal line drawn on the land?
To make it look symmetrical
To measure the perimeter
To divide it into two triangles
To mark the boundary
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula used to calculate the area of a scalene triangle?
a = b * h / 2
a = l * w
a = s * (s-a) * (s-b) * (s-c)
a = π * r^2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does 's' represent in the scalene triangle formula?
The side length
The diagonal
The semi-perimeter
The height
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the first triangle, what is the semi-perimeter if the sides are 5m, 3m, and 4m?
6 meters
12 meters
5 meters
7 meters
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the area of the first triangle with sides 5m, 3m, and 4m?
8 square meters
6 square meters
10 square meters
12 square meters
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the second triangle, what is the semi-perimeter if the sides are 13m, 12m, and 5m?
18 meters
20 meters
25 meters
15 meters
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