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Key Quiz 1.4
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1
On a sunny day Chevon’s shadow is 2.6 m long, while the shadow of her school is 22.1 m long. If Chevon is 1.45 m tall, how tall is her school to the nearest tenth of a metre?
A)39.6 m
B)12.3 m
C)10 m
D)5
2
Fritz stands 2 m away from an overhead projector and makes shadow puppets on a screen at the front of the classroom 5 m in front of him:
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If the shape formed by his hands is 10 cm high, how large will the image on the screen be?
A)35 m
B)0.35 m
C)0.25 m
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3
To find the width of a river, Akhil surveys the area and finds the following measures:

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Find the width of the river to the nearest metre.
A)49 m
B)8 m
C)5 m
D)1 m
4
A hiker, whose eye level is 1.85 m above the ground, uses a mirror to measure the height of a tree. She places a mirror on the ground 15 m from the base of the tree and finds that when she stands 6 m away from the mirror, she can see the reflection of the top of the tree. To the nearest tenth of a metre, how tall is the tree?
A)11.1 m
B)5 m
C)4.6 m
D)0.7 m
5
Find the length of line segment DB in the diagram shown to the nearest hundredth of a unit:
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A)2.5 units
B)2.24 units
C)2.23 units
D)1.5 units





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