Page 120 - NUMINO Challenge_D1
P. 120
Problem solving Key Points
1 A goat is tied to the vertex of an equilateral The portion of land in
triangle by a 6 m long rope, as shown below. which the goat can
Find the area of land in which the goat can move around is
move. Round the answer to the nearest tenth. shown below.
120
120
300
5m
2 A circle with a radius of 1 cm is moving along a The circle has made
square that has sides of 4 cm. When the circle the following path.
makes one complete turn around the square and
arrives back at the starting point, what is the
area of the path that the circle has made?
117Measurement
1 A goat is tied to the vertex of an equilateral The portion of land in
triangle by a 6 m long rope, as shown below. which the goat can
Find the area of land in which the goat can move around is
move. Round the answer to the nearest tenth. shown below.
120
120
300
5m
2 A circle with a radius of 1 cm is moving along a The circle has made
square that has sides of 4 cm. When the circle the following path.
makes one complete turn around the square and
arrives back at the starting point, what is the
area of the path that the circle has made?
117Measurement
