Home
Class 7
MATHS
Delta ABC is right angled at A (Fig 11.2...

`Delta ABC` is right angled at A (Fig `11.25`). `AD` is perpendicular to `BC.` If `AB=5cm, BC=13` and, find the area of `DeltaABC` Also find the lenght of `AD.`

Text Solution

Verified by Experts

In right angled triangle BAC, `AB = 5 cm, BC = 13 cm and AC = 12 cm.`
Area of triangle BAC =` 1/2 × Base × Height`
= `1/2 × 5 cm × 12 cm`
= `30 cm2`
...
Promotional Banner

Topper's Solved these Questions

  • PERIMETER AND AREA

    NCERT|Exercise SOLVED EXAMPLES|22 Videos

  • LINES AND ANGLES

    NCERT|Exercise SOLVED EXAMPLES|1 Videos

  • RATIONAL NUMBERS

    NCERT|Exercise SOLVED EXAMPLES|6 Videos

Similar Questions

Explore conceptually related problems

DeltaABC is a right angle triangle (right angled at B), BD is perpendicular to AC. If AC = 16 cm, BC = 12 cm, find the length of CD.

In DeltaABC, /_A is right angle and AD is perpendicular to BC. If AD=4 cm, BC=12 cm, then value of (cotB+cotC)=

DeltaABC is right angled at A and AB = 10 units .AC = 30 units and AD is perpendicular to BC. What is the area of DeltaADB ?

In DeltaABC, /_A is right angle and AD is perpendicular to BC . If AD=4cm, BC=12 cm, then value of (cot B+cot C) is

ABC is a triangle right angled at A and AD is perpendicular to BC. If BD = 8 cm and DC =12.5 cm, then what is AD equal to ?

ABC is right angle triangle where AD is perpendicular on hypotenuse BC. If AC = 2 AB find BD.

Delta ABC is right-angled at A and AD bot BC . If BC=13 cm and AC=5 cm , find the ratio of areas of Delta ABC and Delta ADC .