
perimeter and area
Authored by lovleen dhingra
Mathematics
7th Grade
Used 2+ times

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16 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What does perimeter mean?
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The space inside an object is called it's
area
perimeter
3.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
find the area of the given triangle.
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A triangle has Base= 20 cm, Area of the Parallelogram = 246 cm2 . Find it's Height.
492 cm
13.2 cm
12.3 cm
11cm
5.
FILL IN THE BLANK QUESTION
5 mins • 3 pts
PQRS is a parallelogram. QM is the height from Q to SR, and QN is the height from Q to PS. If SR = 12 cm and QM = 7.6 cm, find QN, if PS = 8 cm.
6.
FILL IN THE BLANK QUESTION
5 mins • 3 pts
ΔABC is right-angled at A. AD is perpendicular to BC. If AB = 5 cm, BC = 13 cm and AC = 12 cm, find the area of ΔABC.
7.
MULTIPLE CHOICE QUESTION
5 mins • 4 pts
ΔABC is isosceles with AB = AC = 7.5 cm and BC = 9 cm. The height AD from A to BC is 6 cm. After finding the area of ΔABC, find CE.
2.7 cm
7.3cm
7.2 cm
6cm
Answer explanation
Area of the ΔABC = ½ × Base × Height
= ½ × AB × AC
= ½ × 5 × 12
= 1 × 5 × 6
= 30 cm2
Now,
Area of ΔABC = ½ × Base × Height
30 = ½ × AD × BC
30 = ½ × AD × 13
(30 × 2)/13 = AD
AD = 60/13
AD = 4.6 cm
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