Question

13 - 'द्रव' शब्द का विलोम शब्द है -
गाढ़ा
आ- तरल
ई-तीनों विकल्प सही है
इ. ठोस​

Answer 1

Answer:

Question:-

find the angle 2x and 3x if one angle is 90° of a triangle

Answer:-

First angle = 36°

Second angle = 54°

To find:-

All angles of triangle

Solution:-

First angle = 2x

Second angle = 3x

Third angle = 90°

As we know,

Sum of all angles of triangle = 180°

According to question,

\large{ \tt : \implies \: \: \: \: \: \: \: 2x + 3x + 90 \degree = 180 \degree}:⟹2x+3x+90°=180°

\large{ \tt : \implies \: \: \: \: \: \: \: 5x = 180 \degree - 90 \degree}:⟹5x=180°−90°

\large{ \tt : \implies \: \: \: \: \: \: \: 5x = 90 \degree}:⟹5x=90°

\begin{gathered} \large{ \tt : \implies \: \: \: \: \: \: \: x = \frac{90}{5} } \\ \end{gathered}

:⟹x=

5

90

\large{ \tt : \implies \: \: \: \: \: \: \: x = 18\degree}:⟹x=18°

First angle = 36 °

Second angle = 54°

Hence,

The angles of triangle are 36°,54° and 90°

Answer 2

Answer:

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