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primary 6 | Maths
| Geometry
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Date Posted: 3 years ago
Views: 184
Angle x is actually one of the base angles of an isosceles triangle. You should able to see 3 radius on the figure , and 2 different isosceles triangles.
But still how do solve?
You've labelled the 90°. Notice that it's one of the angles of an isosceles triangle? So use this to find the base angles.
Then notice that one of this base angles can be combined with the 13° to get the base angle of the other isosceles triangle? Using this, you can find x and y already.
Can u write it out
180° - 90° = 90°
90° ÷ 2 = 45°
45° + 13° = 58°
∠ x = 58°
180° - 58° - 58° = 64°
90° - 64° = 26°
∠ y = 26°
90° ÷ 2 = 45°
45° + 13° = 58°
∠ x = 58°
180° - 58° - 58° = 64°
90° - 64° = 26°
∠ y = 26°
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done
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Follow step 1-2-3-4-5 to solve x and y. Hope this helps
Date Posted:
3 years ago
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