Box extends Convex (#40574)

types/p2/index.d.ts

@@ -760,16 +760,13 @@ declare namespace p2 {
 
     }
 
-    export class Box extends Shape {
+    export class Box extends Convex {
 
         constructor(options?: BoxOptions);
 
         width: number;
         height: number;
 
-        computeMomentOfInertia(mass: number): number;
-        updateArea(): void;
-
     }
 
     export interface CapsuleOptions extends SharedShapeOptions {