Circum-radius of any right-angled triangle is

Important Questions on Theorems on Concurrence

MEDIUM

9th West Bengal Board

IMPORTANT

MATHEMATICS CLASS 9>Chapter 13 - Theorems on Concurrence>EXERCISE-1>Q 1

The lengths of the sides of the triangle are $8 \mathrm{cm}, 15 \mathrm{cm} \mathrm{and} 17 \mathrm{cm}$. The length of its circum-radius is 

MEDIUM

9th West Bengal Board

IMPORTANT

MATHEMATICS CLASS 9>Chapter 13 - Theorems on Concurrence>EXERCISE-1>Q 1

Circum-centre, incentre, centroid and orthocentre will be the same of

EASY

9th West Bengal Board

IMPORTANT

MATHEMATICS CLASS 9>Chapter 13 - Theorems on Concurrence>EXERCISE-1>Q 1

$\mathrm{I}$ is the incentre of the $△\mathrm{ABC}$, $\angle \mathrm{BAC}=44°$, then $\angle \mathrm{BIC}=$

EASY

9th West Bengal Board

IMPORTANT

MATHEMATICS CLASS 9>Chapter 13 - Theorems on Concurrence>EXERCISE-1>Q 1

$\mathrm{O}$ is the Orthocentre of the $△\mathrm{ABC}$, $\angle \mathrm{BAC}=55°$, then $\angle \mathrm{BOC}=$ then find $k$.

EASY

9th West Bengal Board

IMPORTANT

MATHEMATICS CLASS 9>Chapter 13 - Theorems on Concurrence>EXERCISE-1>Q 2

The length of the circumradius of the right-angled triangle is $4 \mathrm{cm}$. Find its length of hypotenuse in $\mathrm{cm}$.

EASY

9th West Bengal Board

IMPORTANT

MATHEMATICS CLASS 9>Chapter 13 - Theorems on Concurrence>EXERCISE-1>Q 2

How many points of a triangle are equidistant from its sides and what is its name?

HARD

9th West Bengal Board

IMPORTANT

MATHEMATICS CLASS 9>Chapter 13 - Theorems on Concurrence>EXERCISE-1>Q 2

In the right-angled triangle $ABC$, $\angle ABC=90°$, $AB=5 \mathrm{cm}$ and $BC=12 \mathrm{cm}$, then find its length of circum-radius in $\mathrm{cm}$.

HARD

9th West Bengal Board

IMPORTANT

MATHEMATICS CLASS 9>Chapter 13 - Theorems on Concurrence>EXERCISE-1>Q 2

In the right-angled triangle $ABC$, $\angle ABC=90°$, $AB=6 \mathrm{cm}$ and $BC=8 \mathrm{cm}$, then find its length of circum-radius in $\mathrm{cm}$.