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Question
Construct ¯¯¯¯¯¯¯¯AB of length 7.8 cm. From this, cut off ¯¯¯¯¯¯¯¯AC of length 4.7 cm. What is the measure of ¯¯¯¯¯¯¯¯BC in cm?
Construct ¯¯¯¯¯¯¯¯AB of length 7.8 cm. From this, cut off ¯¯¯¯¯¯¯¯AC of length 4.7 cm. What is the measure of ¯¯¯¯¯¯¯¯BC in cm?
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Solution
The correct option is B 3.1
After construction, the measure of ¯¯¯¯¯¯¯¯BC is 3.1 cm.
Also,
Since points A, B and C lie on the same line, hence we can also subtract the lengths and find the value of BC
BC = 7.8 - 4.7 = 3.1 cm
After construction, the measure of ¯¯¯¯¯¯¯¯BC is 3.1 cm.
Also,
Since points A, B and C lie on the same line, hence we can also subtract the lengths and find the value of BC
BC = 7.8 - 4.7 = 3.1 cm
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of
length 7.8 cm. From this, cut off
of
length 4.7 cm. Measure
.