Learning Objective: to be able to calculate the area of a circle Area of a circle check - can you do the following? 1. 2. 28cm 2m

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter10: Measurement, Area, And Volume
Section10.4: Circumference And Area Of A Circle
Problem 33E
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I need some help with these 9 questions please
Learning Objective: to be able to calculate the area of a circle
Area of a circle check - can you do the following?
1.
2.
28cm
2m
QUESTION 1
Find the area of the following shapes and give you answers to 1dp
[HINT: what would you need to split a circle up into to make a semi-circle?]
а.
b.
8cm
7m
QUESTION 2
Mr Adams wants to turf a circular area of his garden, the turf costs £4 per square metre. If the
circular area has a radius of 6m, work out the total cost.
QUESTION 3
The radius of 1p, 5p and 10p coins are 1cm, 0.9cm and 1.2cm respectively. Calculate the total
area of the top faces of the five coins used to make 18p.
QUESTION 4
Find the shaded area of the following shapes. Lengths are in cm.
а.
b.
10cm
7cm
4cm
10cm
Transcribed Image Text:Learning Objective: to be able to calculate the area of a circle Area of a circle check - can you do the following? 1. 2. 28cm 2m QUESTION 1 Find the area of the following shapes and give you answers to 1dp [HINT: what would you need to split a circle up into to make a semi-circle?] а. b. 8cm 7m QUESTION 2 Mr Adams wants to turf a circular area of his garden, the turf costs £4 per square metre. If the circular area has a radius of 6m, work out the total cost. QUESTION 3 The radius of 1p, 5p and 10p coins are 1cm, 0.9cm and 1.2cm respectively. Calculate the total area of the top faces of the five coins used to make 18p. QUESTION 4 Find the shaded area of the following shapes. Lengths are in cm. а. b. 10cm 7cm 4cm 10cm
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