Question

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5 The ratio of the angles of a triangle is 1 :2:3. What is the size of the smallest angle?
A metre ruler is broken into two parts in the ratio 16:9. How long is each part?
7 A motorbike uses a petrol and oil mixture in the ratio 17:3.
a How much of cach is there in 25 litres of mixture?
b How much petrol would be mixed with 250 ml of oil?
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Answer 1

The size of the smallest angle in a triangle can be found by dividing the sum of the angle ratios by the total number of parts.

Step-by-step explanation:

The ratio of the angles of a triangle is 1:2:3. To find the size of the smallest angle, we need to calculate the total of the angles in the triangle. Since the ratio of the angles is 1:2:3, we can add up the parts: 1+2+3 = 6. The total sum represents the smallest angle, so we divide it by 6 to find the size of the smallest angle. The smallest angle is 1/6 of the total angle.

For example, if the total angle of the triangle is 180 degrees, the smallest angle would be 180/6 = 30 degrees.

Learn more about Triangle angles