Ages 9–10🧮 Mathematics9 verified questions on this shelf
Measuring angles (age 9+)
Recognise angle measure as additive; find unknown angles by adding or subtracting on a diagram using equations with a symbol for the unknown
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Question 1 of 3
A carpenter draws a corner angle and then splits it into two adjacent angles. The larger angle is 7° more than twice the smaller angle. If the whole corner angle measures 115°, what is the measure of the smaller angle (in degrees)?
Question 2 of 3
A big angle is split into two smaller angles that measure 35° and 40°. What is the measure of the big angle?
Question 3 of 3
Three angles meet at a point. Two of them measure 120° and 90°. What is the measure of the third angle, x°?
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