## 1dpp 3 years ago An equilateral triangle can have a right angle. True False

1. vishal_kothari

false

2. 1dpp

false

3. vishal_kothari

because all angles are of 60 degrees...

4. Rohangrr

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5. Rohangrr

so true

6. 1dpp

Any triangle has at most two acute angles. True False

7. Rohangrr

false

8. Rohangrr

only one

9. 1dpp

thanks

10. Rohangrr

its my pleasure

11. 1dpp

Which of the following types of polygons do not exist? (i) parallelogram with right angles (ii) isosceles trapezoid with all obtuse angles (iii) quadrilateral with all acute angles (i) and (ii) only (i) and (iii) only (ii) and (iii) only None of the other choices

12. Rohangrr

None of the other choices

13. 1dpp

5. Consider the following diagram. Which statement, if either, is true? (i) m∠4 + m∠5 + m∠6 = 180° (ii) m∠7 + m∠8 + m∠9 = 360° A) (i) only B) (ii) only C) Both (i) and (ii) D) Neither (i) nor (ii)

14. AnimalAin

Parallelogram with right angles is called a rectangle. Pretty sure they exist. Trapezoids have four sides, two of which are parallel. Like all quadrilaterals, they have a total of 360 degrees of interior angle. It is hard to get four obtuse angles to total to only 360. Similarly, a quadrilateral with four acute angles will have a hard time summing to 360 degrees. Seems to me that (ii) and (iii) are conditions that are hard to meet.

15. 1dpp

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