Question
A ΔABC such that AB = 3 cm, BC = 2 cm and AC = 2.5
A ΔABC such that AB = 3 cm, BC = 2 cm and AC = 2.5
cm. ΔDEF similar to ΔABC. If EF = 4 cm then the perimeter of ΔDEF is-
Given that, ΔDEF similar to ΔABC then (AB/BC) = (DE/EF) ⇒ (3/2) = DE/4 DE = 6 cm similarly, (BC/AC) = (EF/DF) ⇒ (2/2.5) = 4/DF then DF = 5 then perimeter of ΔDEF is = DE+EF+DF = 6 + 4 + 5 = 15 cmMore Triangle Questions
- In a triangle ABC, the incenter is at O. Find angle BAC if angle BOC=120°.
- The smallest side of a right-angled triangle is 7 cm less than the side of a square of perimeter 76 cm. The second largest side of the right-angled triangl...
- Find the approximate area of a triangle with a base of 17.9 cm and a corresponding height of 15.3 cm.
- Determine the length of side BC if ∠BAC = 60⁰, AB= 10 cm and AC = 15 cm.
- In triangle ABC, DE is parallel to BC and D lies on AB. If AD:DB = 2:3 and the area of triangle ABC is 125 sq cm, then the area of triangle ADE is:
- What is the height of an equilateral triangle if each of its sides is 4√3 cm?
- If two triangles ABC and XYZ are congruent, then which of the following statement(s) is/are true? I. AB = XY II. ∠CAB = ∠XYZ
- What is the height of an equilateral triangle with a side length of 12√5 cm?
- Area of a triangles with vertices at (2, 3), (-1, 0) and (2, -4) is :
- In a right-angled triangle, the perimeter is 60 cm. If the base is 12 cm and the height is 16 cm, find the length of the hypotenuse.
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)