Question

first no. question is state for each of the triangles shown in the figure whether it is acute, right,or obtuse​

Answer 1

Answer:

1 - right

2-obtuse

3- acute

4- right

Step-by-step explanation:

right angled tri. are those in which one of angles is90⁰

in fig.1&4 there are 90⁰ so right angled triangle

acute angled tri. means all the angles of that triangle are less than 90⁰

in fig.3 all angles 60 ,70&50 are less than 90⁰ so acute angled triangle

obtuse angled tri. means one angle is greater than 90⁰ here in fig.2 130⁰ is more than 90⁰ so obtuse angled triangle

Answer 2

Answer:

2) i) right

ii)obtuse

iii)acute

iv)right

3)(i) scalene

ii) isosceles

iii) scalene

iv) equilateral

v) isosceles

vi) equilateral

4)I) acute

ii)obtuse

iii)right

iv) obtuse

v)right

vi)acute

5)a)ABC

b)ADE

c)ABM,AMC

d) ADE

e)ABD,ACE

f)ADM,AEM,AMC,ABM

6)c)

7)b)

8)c)

9) Because in isosceles triangle all sides are not equal while in equilateral triangle two sides are equal.

10) Unable to solve.

Really sorry, I am unable to answer 10 th one.